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- Vivo X21i vs Vivo X21 vs Vivo X20 Plus UD vs Vivo X20 Plus
Vivo X21i vs Vivo X21 vs Vivo X20 Plus UD vs Vivo X20 Plu comparison
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| key specs | ||||
| Display | 6.28-inch | 6.28-inch | 6.43-inch | 6.43-inch |
| Processor | MediaTek Helio P60 | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 |
| Front Camera | 24-megapixel | 12-megapixel | 12-megapixel | 12-megapixel |
| Rear Camera | 12-megapixel | 12-megapixel + 5-megapixel | 12-megapixel | 12-megapixel |
| RAM | 4GB | 6GB | 4GB | 4GB |
| Storage | 64GB | 128GB | 128GB | 64GB |
| Battery Capacity | 3245mAh | 3200mAh | 3905mAh | 3905mAh |
| OS | Android 8.1 | Android 8.1 | Android 7.1 | Android 7.1.1 |
| Resolution | 1080x2280 pixels | 1080x2280 pixels | 1080x2160 pixels | 1080x2160 pixels |
| general | ||||
| Brand | Vivo | Vivo | Vivo | Vivo |
| Model | X21i | X21 | X20 Plus UD | X20 Plus |
| Release date | May 1, 2018 | March 1, 2018 | January 1, 2018 | September 1, 2017 |
| Form factor | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Dimensions (mm) | 154.37 x 74.98 x 6.99 | 154.50 x 74.80 x 7.40 | 165.20 x 80.09 x 7.35 | 165.32 x 80.09 x 7.45 |
| Weight (g) | 159.00 | 156.20 | 181.50 | 181.00 |
| Battery capacity (mAh) | 3245 | 3200 | 3905 | 3905 |
| Colours | Aurora White, Polar Night, Ruby Red | Black, Gold | Black | Matte Black, Gold, Rose Gold |
| Launched in India | - | Yes | - | - |
| Removable battery | - | No | No | No |
| Fast charging | - | Proprietary | - | - |
| display | ||||
| Screen size (inches) | 6.28 | 6.28 | 6.43 | 6.43 |
| Touchscreen | Yes | Yes | Yes | Yes |
| Resolution | 1080x2280 pixels | 1080x2280 pixels | 1080x2160 pixels | 1080x2160 pixels |
| Aspect ratio | - | 19:9 | - | - |
| hardware | ||||
| Processor | 2GHz octa-core | 2.2GHz octa-core | 1.8GHz octa-core | 1.8GHz octa-core |
| Processor make | MediaTek Helio P60 (MT6771) | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 660 |
| RAM | 4GB | 6GB | 4GB | 4GB |
| Internal storage | 64GB | 128GB | 128GB | 64GB |
| Expandable storage | Yes | Yes | Yes | Yes |
| Expandable storage type | microSD | microSD | microSD | microSD |
| Expandable storage up to (GB) | 256 | 256 | 256 | 256 |
| camera | ||||
| Rear camera | 12-megapixel | 12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4) | 12-megapixel | 12-megapixel |
| Rear flash | Dual LED | LED | Yes | Yes |
| Front camera | 24-megapixel | 12-megapixel (f/2.0) | 12-megapixel | 12-megapixel |
| Rear autofocus | - | Phase detection autofocus | - | - |
| software | ||||
| Operating system | Android 8.1 | Android 8.1 | Android 7.1 | Android 7.1.1 |
| Skin | Funtouch OS 4 | FunTouch 4.0 | FunTouch OS | FunTouch OS |
| connectivity | ||||
| Wi-Fi | Yes | Yes | Yes | Yes |
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 a/b/g/n/ac | - | - |
| GPS | Yes | Yes | Yes | Yes |
| Bluetooth | Yes | Yes, v 5.00 | Yes, v 5.00 | Yes, v 5.00 |
| USB OTG | Yes | Yes | Yes | Yes |
| FM | Yes | No | No | No |
| Number of SIMs | 2 | 2 | 2 | 2 |
| NFC | - | No | No | No |
| Infrared | - | No | No | No |
| Micro-USB | - | Yes | - | - |
| Headphones | - | 3.5mm | 3.5mm | 3.5mm |
| Wi-Fi Direct | - | - | No | No |
| Mobile High-Definition Link (MHL) | - | - | No | No |
| sim 1 | ||||
| SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | - |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| sim 2 | ||||
| SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | - |
| GSM/CDMA | GSM | GSM | GSM | GSM |
| 3G | Yes | Yes | Yes | Yes |
| 4G/ LTE | Yes | Yes | Yes | Yes |
| sensors | ||||
| Proximity sensor | Yes | Yes | Yes | Yes |
| Accelerometer | Yes | Yes | Yes | Yes |
| Ambient light sensor | Yes | Yes | Yes | Yes |
| Gyroscope | Yes | Yes | Yes | Yes |
| Fingerprint sensor | - | Yes | - | - |
| Compass/ Magnetometer | - | Yes | Yes | Yes |
| Barometer | - | - | No | No |
| Temperature sensor | - | - | No | No |
| ratings | ||||
| Overall NDTV Rating | - | Read Review | - | - |
| Design Rating | - | - | - | |
| Display Rating | - | - | - | |
| Software Rating | - | - | - | |
| Performance Rating | - | - | - | |
| Battery Life Rating | - | - | - | |
| Camera Rating | - | - | - | |
| Value for Money Rating | - | - | - | |
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